KOVROS USA is a manufacturer of high end OnCollar™, a patented attachable collar cover (collar sleeve) that enhances look of regular shirts with permanent collars. 

Collar cover can be made with designer, custom or plain fabrics to meet virtually any need.
You can print or do embroidery work on OnCollar. Put your company's logo, a promotional message or QR Code and put it over your existing dress shirt collar. Ideal for business to promote their services and/or products.